streaming max 4 stereo wave files at the same time

tools/ringbuffer.h

@@ -0,0 +1,49 @@
+#pragma once
+#include <iostream>
+
+template<typename T>
+class RingBuffer{
+  public:
+    RingBuffer(size_t size) : bufferSize(size) {}
+
+	void begin(){
+      buffer = new T[bufferSize];
+    }
+
+    bool push(T data){
+		std::cout << "write: " << data << std::endl;
+      if(counter < bufferSize){
+        buffer[write] = data;
+        write = (write+1) % bufferSize;
+        counter++;
+        return true;
+      } 
+      return false;
+    }
+    
+    T pop(){
+      T retval;
+      if(counter > 0) {
+        counter--;
+        retval = buffer[read];
+        read = (read+1) % bufferSize;
+      }
+		std::cout << "read: " << retval << std::endl;
+      return retval;
+    }
+	
+	bool isEmpty(){
+		return counter == 0;
+	}
+
+    bool isFull(){
+      return counter == bufferSize;
+    }
+
+  private:
+    size_t bufferSize = 0;
+    int counter = 0;
+    int write = 0;
+    int read = 0;
+    T *buffer;
+};